WO1998057838A1 - Personal mobility vehicle - Google Patents

Personal mobility vehicle Download PDF

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Publication number
WO1998057838A1
WO1998057838A1 PCT/GB1998/001771 GB9801771W WO9857838A1 WO 1998057838 A1 WO1998057838 A1 WO 1998057838A1 GB 9801771 W GB9801771 W GB 9801771W WO 9857838 A1 WO9857838 A1 WO 9857838A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
vehicle according
adjacent
linking
ground engaging
Prior art date
Application number
PCT/GB1998/001771
Other languages
French (fr)
Inventor
Royston Mervyn Gould
Original Assignee
Sunrise Medical Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sunrise Medical Limited filed Critical Sunrise Medical Limited
Priority to AT98932277T priority Critical patent/ATE209136T1/en
Priority to EP98932277A priority patent/EP0988213B1/en
Priority to DK98932277T priority patent/DK0988213T3/en
Priority to DE69803286T priority patent/DE69803286T2/en
Publication of WO1998057838A1 publication Critical patent/WO1998057838A1/en
Priority to NO996216A priority patent/NO996216D0/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
    • A61G5/045—Rear wheel drive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1078—Parts, details or accessories with shock absorbers or other suspension arrangements between wheels and frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
    • B62D61/06—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with only three wheels
    • B62D61/08—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with only three wheels with single front wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K15/00—Collapsible or foldable cycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
    • B62K5/02—Tricycles
    • B62K5/023—Tricycles specially adapted for disabled riders, e.g. personal mobility type vehicles with three wheels
    • B62K5/025—Tricycles specially adapted for disabled riders, e.g. personal mobility type vehicles with three wheels power-driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
    • B62K5/02—Tricycles
    • B62K5/06—Frames for tricycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K2202/00—Motorised scooters

Definitions

  • the invention relates to a personal mobility vehicle of the kind generally known as a wheelchair or scooter, and in particular to such vehicles which are powered and separable into front and rear parts.
  • personal mobility vehicle comprising separable front and rear parts, wherein: the front part has at least one ground engaging wheel rotatably mounted thereon; the rear part provides a support for a seat, connection means to rotatably mount a pair of ground engaging wheels, and drive means airanged to drive the ground engaging wheels, and joining means are provided to join the front and rear parts together.
  • connection means extends rearwardly from a lower portion, or adjacent a lower portion, of the seat support.
  • connection means comprises a nailing arm arrangement supporting an axle on which the ground engaging wheels are mounted.
  • connection means may further comprise upwardly inclined linking means between the axle, or adjacent the axle, and an upper portion, or adjacent an upper portion, of the seat support.
  • the linking means may comprise a linking element located substantially on or adjacent to the mid-line of the vehicle.
  • the linking means may comprise two linking elements located to either side of the mid-line of the vehicle.
  • the or each linking element may comprise a rigid member.
  • the trailing arm arrangement is pivotally connected to or adjacent the lower poition of the seat support and the or each linking element comprises a suspension unit.
  • the or each suspension unit may comprise a spring/damper unit.
  • FIGURE 1 is a side view of a first embodiment of the invention
  • FIGURE 2 is a plan view of the Figure 1 embodiment
  • FIGURE 3 is a side view of a second embodiment of the invention.
  • FIGURE 4 is a plan view of the Figure 3 embodiment.
  • a rear part 10 of a personal mobility vehicle of the kind commonly called a wheelchair is illustrated, along with a portion of a front part 11 and a portion of joining means 12.
  • the present invention relates to the rear part 10 of the vehicle only that part of the vehicle will be described further.
  • the rear part 10 comprises a frame portion 15 and a seat support 16 in the form of a substantially vertical tubular member, which is located on the mid- line of the vehicle, for receipt of a seat stem 13.
  • a flange 16a is provided on a rear part of the seat support 16 .
  • two brackets 17 are provided, to either side of a mid-line of the vehicle, which have substantially horizontal bores therethrough.
  • the rear part 10 further comprises an axle 19, bearing a pair of rotatable ground engaging wheels 20, and a drive unit 21 drivably connected to the wheels 21 via the axle 19.
  • the axle 19 is mounted on the frame part 15 by means of a trailing arm arrangement comprising forw ard arms 22 and rearward arms 23.
  • the forward arms 22 have bores at their forward ends, which when aligned with the bores in the brackets 17, allow for insertion of pins 18 and thus connection of the axle 19 to the frame part 15.
  • the rearward amis 23 have castors, or jockey wheels, 24 rotatably mounted at their rearward ends.
  • the rear part 10 further comprises a flange 25 provided in this case adjacent to a central portion of the axle 19, close to the mid-line of the vehicle.
  • a linking element 26 is connected between the flange 16a and the flange 25 by means of appropriate fastenings (not shown).
  • the linking element 26 is in this case a rigid member. However, if it is desired to provide rear suspension for the vehicle then the rigid linking member 26 is simply replaced by a suspension unit of appropriate kind, for example a spring/damper unit. Provided, the forward hailing amis 22 are connected to the brackets 17 in a pivotal manner this arrangement provides the required suspension. Hence, a rear part of a vehicle as described above provides the advantage that different models within a product range may readily be provided, with and without rear suspension, with minimal additional parts and cost.
  • a rear part 40 of a personal mobility vehicle is illustrated, with its forward end to the left and its rear end to the right.
  • the rear part 40 comprises a frame part 41 and a seat support 42, in the form of a generally upright tubular member which is located on the mid-line of the vehicle.
  • the frame part 41 has a bore therethrough from side to side for receipt of a spindle 43, as best shown in Figure 4.
  • the rear part 40 further comprises an axle 44, bearing a pair of rotatable ground engaging wheels 45, and a drive unit 46 drivably connected to the wheels 45 via the axle 44.
  • the axle 44 is attached to the frame part 41 by means of a trailing ami arrangement comprising forward aims 47 and rearward amis 48.
  • the forward amis 47 have bores at their forward ends through which the spindle 43 is passed to either side of the frame part 41.
  • the rearward arms 48 have castors, or jockey wheels, 49 rotatably mounted at their rearward ends.
  • the real- part 40 further comprises a flange 50 on or adjacent to the middle of the axle 44 and a flange 51 on or adjacent to an upper poition of the seat support 42.
  • a linking element 52 is attached to the flanges 50 and 51 by means of appropriate fasteners (not shown).
  • the linking element 52 comprises a suspension unit in the form of a spring/damper unit, hence the rear part 40 described above provides suspension.
  • the suspension unit may be replaced with a rigid member, as described for the rear part 10.
  • the second embodiment provides the same advantage as described for the first embodiment.
  • both embodiments of the invention have been described incorporating a single linking element adjacent to the mid-line of the vehicle, they may both be readily adapted to incorporate tw o such linking elements, one on either side of the mid-line of the vehicle.

Abstract

A personal mobility vehicle is described which comprises separable front and rear parts (10), wherein: the front part has at least one ground engaging wheel rotatably mounted thereon; the rear part (10; 40) provides a support for a seat (16; 42), connection means (22, 23) to rotatably mount a pair of ground engaging wheels (20), and drive means (21) arranged to drive the ground engaging wheels, and joining means are provided to join the front and rear parts together.

Description

Title: Personal Mobility Vehicle
Description of the Invention
The invention relates to a personal mobility vehicle of the kind generally known as a wheelchair or scooter, and in particular to such vehicles which are powered and separable into front and rear parts.
According to a first aspect of the present invention there is provided personal mobility vehicle comprising separable front and rear parts, wherein: the front part has at least one ground engaging wheel rotatably mounted thereon; the rear part provides a support for a seat, connection means to rotatably mount a pair of ground engaging wheels, and drive means airanged to drive the ground engaging wheels, and joining means are provided to join the front and rear parts together.
Preferably the connection means extends rearwardly from a lower portion, or adjacent a lower portion, of the seat support.
Preferably the connection means comprises a nailing arm arrangement supporting an axle on which the ground engaging wheels are mounted.
The connection means may further comprise upwardly inclined linking means between the axle, or adjacent the axle, and an upper portion, or adjacent an upper portion, of the seat support.
The linking means may comprise a linking element located substantially on or adjacent to the mid-line of the vehicle.
In the alternative the linking means may comprise two linking elements located to either side of the mid-line of the vehicle. The or each linking element may comprise a rigid member. hi an alternative the trailing arm arrangement is pivotally connected to or adjacent the lower poition of the seat support and the or each linking element comprises a suspension unit. The or each suspension unit may comprise a spring/damper unit.
Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings in which:
FIGURE 1 is a side view of a first embodiment of the invention;
FIGURE 2 is a plan view of the Figure 1 embodiment;
FIGURE 3 is a side view of a second embodiment of the invention, and
FIGURE 4 is a plan view of the Figure 3 embodiment.
Referring first to Figures 1 and 2 a first embodiment of the invention will be described.
A rear part 10 of a personal mobility vehicle of the kind commonly called a wheelchair is illustrated, along with a portion of a front part 11 and a portion of joining means 12. As the present invention relates to the rear part 10 of the vehicle only that part of the vehicle will be described further.
The rear part 10 comprises a frame portion 15 and a seat support 16 in the form of a substantially vertical tubular member, which is located on the mid- line of the vehicle, for receipt of a seat stem 13. On a rear part of the seat support 16 a flange 16a is provided. On a rear central portion of the frame part 15 two brackets 17 are provided, to either side of a mid-line of the vehicle, which have substantially horizontal bores therethrough.
The rear part 10 further comprises an axle 19, bearing a pair of rotatable ground engaging wheels 20, and a drive unit 21 drivably connected to the wheels 21 via the axle 19. The axle 19 is mounted on the frame part 15 by means of a trailing arm arrangement comprising forw ard arms 22 and rearward arms 23. The forward arms 22 have bores at their forward ends, which when aligned with the bores in the brackets 17, allow for insertion of pins 18 and thus connection of the axle 19 to the frame part 15. The rearward amis 23 have castors, or jockey wheels, 24 rotatably mounted at their rearward ends.
The rear part 10 further comprises a flange 25 provided in this case adjacent to a central portion of the axle 19, close to the mid-line of the vehicle. A linking element 26 is connected between the flange 16a and the flange 25 by means of appropriate fastenings (not shown).
The linking element 26 is in this case a rigid member. However, if it is desired to provide rear suspension for the vehicle then the rigid linking member 26 is simply replaced by a suspension unit of appropriate kind, for example a spring/damper unit. Provided, the forward hailing amis 22 are connected to the brackets 17 in a pivotal manner this arrangement provides the required suspension. Hence, a rear part of a vehicle as described above provides the advantage that different models within a product range may readily be provided, with and without rear suspension, with minimal additional parts and cost.
A second embodiment of the invention will now be described with reference to Figures 3 and 4.
A rear part 40 of a personal mobility vehicle is illustrated, with its forward end to the left and its rear end to the right. The rear part 40 comprises a frame part 41 and a seat support 42, in the form of a generally upright tubular member which is located on the mid-line of the vehicle. The frame part 41 has a bore therethrough from side to side for receipt of a spindle 43, as best shown in Figure 4.
The rear part 40 further comprises an axle 44, bearing a pair of rotatable ground engaging wheels 45, and a drive unit 46 drivably connected to the wheels 45 via the axle 44. The axle 44 is attached to the frame part 41 by means of a trailing ami arrangement comprising forward aims 47 and rearward amis 48. The forward amis 47 have bores at their forward ends through which the spindle 43 is passed to either side of the frame part 41. The rearward arms 48 have castors, or jockey wheels, 49 rotatably mounted at their rearward ends.
The real- part 40 further comprises a flange 50 on or adjacent to the middle of the axle 44 and a flange 51 on or adjacent to an upper poition of the seat support 42. A linking element 52 is attached to the flanges 50 and 51 by means of appropriate fasteners (not shown).
In this case the linking element 52 comprises a suspension unit in the form of a spring/damper unit, hence the rear part 40 described above provides suspension. However, if it is desired not to provide suspension then the suspension unit may be replaced with a rigid member, as described for the rear part 10. Hence, the second embodiment provides the same advantage as described for the first embodiment.
Although both embodiments of the invention have been described incorporating a single linking element adjacent to the mid-line of the vehicle, they may both be readily adapted to incorporate tw o such linking elements, one on either side of the mid-line of the vehicle.

Claims

1. A personal mobility vehicle comprising separable front and rear parts, wherein: the front part has at least one ground engaging wheel rotatably mounted thereon; the rear part provides a support for a seat, connection means to rotatably mount a pair of ground engaging wheels, and drive means airanged to drive the ground engaging wheels, and joining means are provided to join the front and rear parts together.
2. A vehicle according to claim 1 wherein the connection means extends rearwardly from a lower portion, or adjacent a lower portion, of the seat support.
3. A vehicle according to claim 2 wherein the connection means comprises a trailing ami airangement supporting an axle on which the ground engaging wheels are mounted.
4. A vehicle according to claim 3 wherein the connection means further comprises upwardly inclined linking means between the axle, or adjacent the axle, and an upper portion, or adjacent an upper portion, of the seat support.
5. A vehicle according to claim 4 wherein the linking means comprises a linking element located substantially on or adjacent to the mid-line of the vehicle.
6. A vehicle according to claim 4 wherein the linking means comprises two linking elements located to either side of the mid-line of the vehicle.
7. A vehicle according to claim 5 or 6 wherein the or each linking element comprises a rigid member.
8. A vehicle according to claim 4 wherein the trailing aπn airangement is pivotally connected to or adjacent the lower poition of the seat support and the or each linking element comprises a suspension unit.
9. A vehicle according to claim 8 wherein the or each suspension unit comprises a spring/damper unit.
10. A vehicle substantially as hereinbefore described with reference to Figures 1 and 2 of the accompanying drawings.
1 1. A vehicle substantially as hereinbefore described with reference to Figures 3 and 4 of the accompanying drawings.
AMENDED CLAIMS
[received by the International Bureau on 12 November 1998 ( 12.11.98) ; original claims 1 - 11 replaced by amended claims 1 - 9 (2 pages)]
1. A personal mobility vehicle comprising separable front and rear parts, wherein:
(a) the front part has at least one ground engaging wheel rotatably mounted thereon;
(b) the rear part provides a support for a seat, connection means which extend rearwardly from a lower portion, or adjacent a lower portion, of the seat support, to rotatably mount a pair of ground engaging wheels, and drive means arranged to drive the ground engaging wheels, and joining means are provided to join the front and rear parts together; characterised in that the connection means comprise a trailing arm arrangement supporting an axle on which the ground engaging wheels are mounted.
2. A vehicle according to claim 1 wherein the connection means further comprises upwardly inclined linking means between the axle, or adjacent the axle, and an upper portion, or adjacent an upper portion, of the seat support.
3. A vehicle according to claim 2 wherein the linking means comprises a linking element located substantially on or adjacent to the mid-line of the vehicle.
4. A vehicle according to claim 2 wherein the linking means comprises two linking elements located to either side of the mid-line of the vehicle.
5. A vehicle according to claim 3 or 4 wherein the or each linking element comprises a rigid member.
6. A vehicle according to claim 2 wherein the trailing arm arrangement is pivotally connected to or adjacent the lower portion of the seat support and the or each linking element comprises a suspension unit.
7. A vehicle according to claim 6 wherein the or each suspension unit comprises a spring/damper unit.
8. A vehicle substantially as hereinbefore described with reference to Figures 1 and 2 of the accompanying drawings.
9. A vehicle substantially as hereinbefore described with reference to Figures 3 and 4 of the accompanying drawings.
PCT/GB1998/001771 1997-06-18 1998-06-17 Personal mobility vehicle WO1998057838A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT98932277T ATE209136T1 (en) 1997-06-18 1998-06-17 INDIVIDUAL MOBILITY VEHICLE
EP98932277A EP0988213B1 (en) 1997-06-18 1998-06-17 Personal mobility vehicle
DK98932277T DK0988213T3 (en) 1997-06-18 1998-06-17 Personal mobility vehicle
DE69803286T DE69803286T2 (en) 1997-06-18 1998-06-17 INDIVIDUAL MOBILITY VEHICLE
NO996216A NO996216D0 (en) 1997-06-18 1999-12-15 Individual mobilitetskjoeretoey

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9712712A GB2326391B (en) 1997-06-18 1997-06-18 Personal mobility vehicle
GB9712712.0 1997-06-18

Publications (1)

Publication Number Publication Date
WO1998057838A1 true WO1998057838A1 (en) 1998-12-23

Family

ID=10814420

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/001771 WO1998057838A1 (en) 1997-06-18 1998-06-17 Personal mobility vehicle

Country Status (7)

Country Link
EP (1) EP0988213B1 (en)
AT (1) ATE209136T1 (en)
DE (1) DE69803286T2 (en)
DK (1) DK0988213T3 (en)
GB (1) GB2326391B (en)
NO (1) NO996216D0 (en)
WO (1) WO1998057838A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11903887B2 (en) * 2020-02-25 2024-02-20 Invacare Corporation Wheelchair and suspension systems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541501A (en) * 1982-03-17 1985-09-17 Honda Giken Kogyo Kabushiki Kaisha Articulated tricycle
US4892166A (en) * 1988-05-03 1990-01-09 Gaffney Edward J Motorized wheelchair assembly having coupling device
US5036938A (en) * 1989-03-13 1991-08-06 Blount Wendell G Disassemblable riding scooter
US5074372A (en) * 1989-11-20 1991-12-24 Fortress Scientific Limited Knock down motorized three-wheeled vehicle
US5154251A (en) * 1990-11-14 1992-10-13 Invacare Corporation Power driven vehicle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2036670B (en) * 1978-11-28 1982-10-13 Kurs P Invalid carriage
US4944359A (en) * 1988-07-28 1990-07-31 Doman Trevor D Vehicle and method of releasably coupling parts of the vehicle together
US5333702A (en) * 1990-07-30 1994-08-02 Ortho-Kinetics, Inc. Three wheel scooter with quick release rear motor and wheel assembly
GB2268456B (en) * 1992-06-17 1995-08-23 Sunrise Medical Ltd Wheeled vehicle and method of coupling parts of the vehicle together
GB2326138A (en) * 1997-06-13 1998-12-16 Sunrise Medical Ltd Personal mobility vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541501A (en) * 1982-03-17 1985-09-17 Honda Giken Kogyo Kabushiki Kaisha Articulated tricycle
US4892166A (en) * 1988-05-03 1990-01-09 Gaffney Edward J Motorized wheelchair assembly having coupling device
US5036938A (en) * 1989-03-13 1991-08-06 Blount Wendell G Disassemblable riding scooter
US5074372A (en) * 1989-11-20 1991-12-24 Fortress Scientific Limited Knock down motorized three-wheeled vehicle
US5154251A (en) * 1990-11-14 1992-10-13 Invacare Corporation Power driven vehicle

Also Published As

Publication number Publication date
DE69803286D1 (en) 2002-02-21
DK0988213T3 (en) 2002-05-21
ATE209136T1 (en) 2001-12-15
DE69803286T2 (en) 2002-05-16
GB9712712D0 (en) 1997-08-20
NO996216L (en) 1999-12-15
GB2326391B (en) 2001-04-11
EP0988213B1 (en) 2001-11-21
GB2326391A (en) 1998-12-23
EP0988213A1 (en) 2000-03-29
NO996216D0 (en) 1999-12-15

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